JP2010060505A - On-vehicle apparatus, route guidance system, and method and program for controlling communication of the on-vehicle apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an on-vehicle apparatus or the like capable of omitting operation for terminating route guidance of the on-vehicle apparatus, on the occasion of arriving at a destination according to the guidance by a portable apparatus. <P>SOLUTION: The on-vehicle apparatus 10 includes: a destination setting means 110 for setting the destination; a route guidance means 130 for performing route guidance for its own vehicle up to its parking position corresponding to the destination; a destination-information transmission means 140 for transmitting destination information representing the destination to the portable apparatus 30 having a route guidance function for a person, following an interruption of the route guidance for the vehicle; and a receiving means 160 for information on arrival confirmation which receives, from the portable apparatus 30, information on arrival confirmation representing to the effect that its user arrives at the destination. The guidance means 130 terminates the route guidance for the vehicle up to the parking position, when the destination information is transmitted or the arrival confirmation information is received. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an in-vehicle device, a route guidance system, a communication control method for an in-vehicle device, and a program that perform route guidance of a vehicle in cooperation with a portable device that performs route guidance of a human.

Conventionally, as a route guidance system for guiding a route by linking a portable device (for example, a mobile phone) and a vehicle-mounted device (for example, a car navigation device), the vehicle-mounted device is currently located at the timing when the vehicle enters the parking lot. It is known that route guidance information indicating a route from the destination to the destination is generated and transmitted to the information center, and the portable device receives the route guidance information from the information center and performs route guidance to the destination. (For example, Patent Document 1). According to this route guidance system, for example, even when there is no parking lot around the destination (when the vehicle cannot be guided to the destination), the remaining route only has to walk according to the guidance of the mobile device. It is convenient without getting lost in the first place.
JP 2002-257579 A

  On the other hand, in general in-vehicle equipment, when the vehicle engine is stopped without arriving at the destination, the route guidance is temporarily interrupted, and when the engine is restarted, the current position (parking) The route guidance from to the destination is started. Therefore, in the above route guidance system, when the vehicle is resumed after returning to the parking lot, the route guidance of the in-vehicle device is resumed even though the vehicle arrives at the destination according to the guidance of the portable device. For this reason, the user has to manually finish the route guidance after returning to the vehicle, and there is a problem that the operation is troublesome.

  In view of the above problems, the present invention provides an in-vehicle device, a route guidance system, and an in-vehicle device that can omit an operation for terminating the route guidance of the in-vehicle device when the vehicle arrives at the destination according to the guidance of the portable device. It is an object to provide a communication control method and program.

  The in-vehicle device of the present invention provides destination setting means for setting a destination, route guidance means for guiding the route of the vehicle to a parking position corresponding to the destination, and destination information indicating the destination in the portable device. A destination information transmitting means for transmitting and an arrival confirmation information receiving means for receiving arrival confirmation information indicating that the mobile device has arrived at the destination, and the route guidance means, when transmitting the destination information, Alternatively, when arrival confirmation information is received, route guidance of the vehicle to the parking position is terminated.

  A communication control method for an in-vehicle device according to the present invention is a communication control method for an in-vehicle device that performs route guidance for a vehicle in cooperation with a portable device that performs route guidance for a human, wherein the in-vehicle device sets a destination. And a step of guiding the vehicle to a parking position corresponding to the destination, a step of transmitting destination information indicating the destination to the mobile device, and an arrival indicating that the mobile device has arrived at the destination A step of receiving confirmation information and a step of ending the route guidance of the vehicle to the parking position after transmitting the destination information or receiving the arrival confirmation information are characterized in that:

According to these structures, since the route guidance of a vehicle is complete | finished with reception of the arrival confirmation information from a portable apparatus, operation for ending the route guidance in the vehicle equipment side can be abbreviate | omitted. In the first place, sending destination information indicating the destination set on the in-vehicle device side to the mobile device is considered to be when the vehicle cannot be moved to the destination. Move to the destination using the function. Therefore, when the destination information is transmitted to the mobile device, or when arrival confirmation information indicating that the mobile device has arrived at the destination is received, route guidance on the in-vehicle device side becomes unnecessary, so the route is automatically By ending the guidance, it is possible to save the trouble of manually canceling the route guidance, and it is possible to improve the convenience of the route guidance by cooperation with the portable device.
The “arrival confirmation information” may be information indicating that the mobile device (owner of the mobile device) has actually arrived at the destination, or that the owner of the mobile device has performed a predetermined operation. It may be information indicating. In the former case, the mobile device can determine whether or not the vehicle has actually arrived at the destination based on the current position information acquired by the GPS receiver or the like and the destination information received from the in-vehicle device. In the latter case, it is possible to determine that the user has arrived at the destination when a predetermined operation is performed by the user regardless of whether the user has actually arrived at the destination. That is, the in-vehicle device can receive these determination results by the mobile device as “arrival confirmation information”.
The “in-vehicle device” is a concept that includes not only a device fixed to the vehicle but also a device (portable in-vehicle device) that is detachably provided in the vehicle.
The “parking position” refers to the destination of the in-vehicle device, but the “destination” and “parking position” may indicate the same point.

  In the in-vehicle device described above, the destination information transmission unit transmits the destination information when the route guidance of the vehicle is interrupted.

  In general, when it is considered impossible to move to the destination, the vehicle is parked and the remaining route is moved using another means of transportation. Etc.) as a trigger, the destination information can be transmitted to the portable device at an appropriate timing. The interruption of the route guidance is specifically when the vehicle engine stops, when the on-vehicle device is turned off, or when the on-vehicle device receives a route guidance interruption instruction.

  The in-vehicle device described above further includes an activation command transmission unit that transmits an activation command for a human route guidance function to the portable device before transmission of the destination information by the destination information transmission unit. And

  According to this configuration, it is possible to save the user from having to activate the route guidance function (route guidance application) on the mobile device side in advance before the destination information is transmitted from the in-vehicle device.

  In the in-vehicle device described above, the mobile device further has a destination setting function for setting a destination, and receives destination information set by the destination setting function from the mobile device. And a stop instruction transmitting means for transmitting a stop instruction for the route guidance function to the portable device in accordance with the reception of the destination information, and the destination setting means is based on the received destination information. The destination is set.

  According to this configuration, route guidance can be performed based on destination information set on the mobile device side. Thereby, the driver can set destination information in advance in the portable device before boarding, and can start route guidance immediately after boarding. In addition, the fact that the destination information is transmitted from the mobile device to the in-vehicle device is considered to eliminate the need for route guidance on the mobile device side, so a command to stop the route guidance function is issued when the destination information is received. By transmitting to the mobile device, the user's trouble for stopping the route guidance function on the mobile device side can be saved.

  In the in-vehicle device described above, when further comprising a cooperation selection means for selecting whether or not to perform cooperation processing with the mobile device, the destination information transmission means is selected to perform the cooperation processing by the cooperation selection means In addition, the destination information is transmitted.

  According to this configuration, it is possible to select whether or not to perform cooperation processing with the mobile device according to the user's needs.

  The in-vehicle device described above further includes current position information acquisition means for acquiring current position information indicating the current position, and the destination information transmission means includes a current position and a parking position when the route guidance of the vehicle is interrupted. The destination information is transmitted when the separation distance is within a predetermined distance.

  According to this configuration, since the distance between the current position and the parking position (the destination of the in-vehicle device) when the vehicle route guidance is interrupted is within a predetermined distance, the destination information is transmitted. Transmission of the destination information can be prevented. In other words, when the current position (the position where the vehicle is parked) at the time when the route guidance of the vehicle is interrupted is far from the parking position (when it is considered impossible to move the remaining route on foot) Since it can be determined that the vehicle is parked on a detour or break, in such a case, by not sending destination information to the mobile device, the convenience of route guidance in cooperation with the mobile device is improved. Can do.

  In the in-vehicle device described above, the destination information transmitting means transmits the current position information indicating the current position when the route guidance of the vehicle is interrupted together with the destination information.

  According to this configuration, since the current position information indicating the current position when the route guidance of the vehicle is interrupted is transmitted, the parking position of the vehicle and the like can be registered in the portable device. This eliminates the need for a user who arrives at the destination to get lost when returning to the vehicle, or to forget the parking position and search for the vehicle.

  In the in-vehicle device described above, the route guidance means interrupts route guidance triggered by a power-off operation of the in-vehicle device or a vehicle engine stop during the route guidance of the vehicle, and the destination information transmission means The destination information is transmitted before the operation of the in-vehicle device due to the off operation or the engine stop is stopped.

  According to this configuration, it is possible to easily and reliably detect the interruption of route guidance by turning off the power of the in-vehicle device or stopping the engine of the vehicle. In addition, since the destination information is transmitted before the operation of the in-vehicle device due to the power-off operation or the engine stop, the destination information is not transmitted.

  In the in-vehicle device described above, the destination information transmitting means transmits the destination information when the parking position is other than a predetermined registration point registered in advance.

  According to this configuration, since the destination information is not transmitted when the parking position is a predetermined registration point registered in advance, unnecessary information transmission can be prevented. For example, when the predetermined registration point is your school, company, or home, it is difficult to imagine a situation where route guidance is required to reach those places. That is, even when the route guidance is interrupted near the home or the like (within a predetermined distance from the destination), the destination information is not transmitted to the portable device, which is convenient.

  A route guidance system according to the present invention includes the above-described in-vehicle device and a portable device.

  The program of the present invention is a program for causing a computer to execute each step in the above-described communication control method for an in-vehicle device.

  According to these configurations, it is possible to provide a route guidance system or program capable of omitting an operation for terminating the route guidance of the in-vehicle device when the vehicle arrives at the destination according to the guidance of the portable device.

  Hereinafter, a vehicle-mounted device, a route guidance system, a communication control method for a vehicle-mounted device, and a program according to an embodiment of the present invention will be described. FIG. 1 is a control block diagram of the in-vehicle device 10. As shown in the figure, the in-vehicle device 10 includes a GPS (Global Positioning System) receiver 11, an antenna 12, a self-contained navigation sensor 13, a display 14, a speaker 15, a remote control receiver 16, a remote control 17, a microphone 18, and a communication unit 19. , A control unit 20, a map database 24, a point registration database 25, a power button 26 and a connection bus 28.

  A GPS (Global Positioning System) receiver 11 receives GPS information (including position information and time information) via an antenna 12. The self-contained navigation sensor 13 includes an angle sensor and a distance sensor (both not shown), and is used for specifying the current position of the vehicle by combining with the GPS receiver 11. The display 14 displays route guidance information and various setting / selection screens as necessary. The speaker 15 outputs route guidance information by voice.

  The remote control light receiver 16 acquires an operation signal from the remote control 17. The remote controller 17 performs various operations using an operator, and is mainly used for information input to the various setting / selection screens. The microphone 18 is used to perform a hands-free call when the mobile device 30 is a mobile phone. The microphone 18 is also used for performing various operations by hands-free voice input.

  The communication unit 19 performs short-range wireless communication and infrared communication with the mobile device 30. Note that Bluetooth (registered trademark), ZigBee (registered trademark), UWB (Ultra Wide Band) may be applied as a communication method for short-distance wireless communication, or IEEE 802.11 such as Wi-Fi (registered trademark). Wireless may be applied. The communication unit 19 may perform wired communication such as bus connection instead of the non-contact communication. The control unit 20 includes a CPU (Central Processing Unit) 21, a ROM (Read Only Memory) 22, and a RAM (Random Access Memory) 23. The CPU 21 is a central processing unit and performs various arithmetic processes. The ROM 22 stores a control program for the CPU 21 to perform various arithmetic processes, and the RAM 23 is used as a work area when the CPU 21 performs various arithmetic processes.

  The map database 24 stores map information for performing route guidance. The point registration database 25 stores point registration information for which points have been registered, and registers frequently visited places, places where destinations have been set in the past, and the like. The in-vehicle device 10 of the present embodiment can register a specific place (your company, school, home, etc.) differently from other registration points, and the specific place Is hereinafter referred to as a “predetermined registration point”.

  The power button 26 is an operator for turning on / off the operation of the in-vehicle device 10. The power button 26 may be turned ON / OFF in conjunction with the position of the vehicle engine start key (eg, accessory ON). The power source of the in-vehicle device 10 is directly connected to the vehicle battery and is energized regardless of the state of the engine or engine key. In the following description, “engine stop” refers to the engine stop state of the vehicle, and does not refer to the operation stop state of the in-vehicle device 10. That is, the in-vehicle device 10 receives an engine stop signal from the vehicle, performs a shutdown process, and then shifts to an operation stop state. Similarly, when an OFF operation is performed by the power button 26, the shutdown process is performed and then the operation is stopped.

  Next, a functional configuration of the route guidance system SY including the in-vehicle device 10 and the portable device 30 will be described with reference to FIG. The mobile device 30 includes a destination setting unit 310 (destination setting function), a route guidance unit 320 (route guidance function), and a communication unit 330 as main functional configurations.

  The destination setting unit 310 sets a route guidance destination (hereinafter also referred to as “final destination”). The set destination can be transmitted to the in-vehicle device 10 as destination information. Thereby, the driver can set the destination information using the portable device 30 before boarding, and after the boarding, the destination information is transmitted to the in-vehicle device 10 to guide the route immediately after boarding. There is an advantage that it can be started. Note that the destination information transmitted to the in-vehicle device 10 may not be latitude / longitude information itself indicating an arbitrary point, but may be a facility name or a telephone number.

  The route guidance unit 320 is for performing route guidance to the destination set by the destination setting unit 310. In this case, route guidance is performed by displaying route guidance information and / or outputting voice of the route guidance information. Therefore, the route guidance means 320 is a concept including display means and voice output means. The route guidance unit 320 can also guide the route to the destination based on the destination information transmitted from the in-vehicle device 10. Details will be described later.

  The communication means 330 is used for input / output (transmission / reception) of information with the in-vehicle device 10, mainly for transmission / reception of destination information and arrival confirmation information (the owner of the mobile device 30 is actually at the destination). Used to transmit information indicating arrival). The arrival confirmation information is determined when the mobile device 30 has actually arrived at the destination specified by the destination information received from the in-vehicle device 10 based on the current position information acquired by the GPS receiver or the like. Shall be transmitted.

  Next, the functional configuration on the in-vehicle device 10 side will be described. The in-vehicle device 10 includes, as main functional configurations, a destination setting unit 110, a predetermined distance determining unit 120, a route guiding unit 130, a destination information transmitting unit 140, an activation command transmitting unit 150, an arrival confirmation information receiving unit 160, a destination Information reception means 170, stop command transmission means 180, map information storage means 210, peripheral information search means 220, current position information acquisition means 230, separation distance determination means 240, predetermined facility determination means 250, point registration information storage means 260, cooperation A selection unit 270 and a predetermined registration point determination unit 280 are provided.

  The destination setting means 110 sets a route guidance destination (final destination), and includes the control unit 20, the display 14, the speaker 15, the remote controller 17, and the microphone 18 as main components. The destination information indicating the destination set by the destination setting means 110 can be transmitted to the mobile device 30 as described above. The destination setting means 110 can also set the destination based on the destination information received from the mobile device 30.

  The predetermined distance determining unit 120 determines a predetermined distance X for determining “separation distance” which is one of transmission conditions for transmitting destination information to the mobile device 30. It is a component. The in-vehicle device 10 according to the present embodiment transmits destination information to the mobile device 30 when the route guidance is interrupted assuming that it is difficult to move the vehicle to the destination (remaining to the destination). Command route guidance for However, when the vehicle is stopped for a break, route guidance is not instructed to the portable device 30 unnecessarily. Therefore, whether the vehicle stops for a break or the vehicle stops due to difficulty in moving the vehicle to the destination is determined based on whether the stop position exceeds a predetermined distance X from the destination.

  Here, the predetermined distance determining unit 120 determines the predetermined distance X based on the search result of the peripheral information searching unit 220 (main component: control unit 20). That is, the surrounding information search unit 220 determines the surrounding information of the parking position as the map information storage unit 210 in accordance with the determination of the parking position (hereinafter also referred to as “car navigation destination”) determined by the route guidance unit 130 described later. Search is performed from the map information stored in (main component: map database 24). Specifically, the distribution status of parking lots (parking facilities) in the vicinity of the car navigation destination is searched from the map information, and the predetermined distance determining unit 120 determines a long predetermined distance when the distribution covers a wide range. Further, when the distribution of the parking lot is concentrated in the vicinity of the car navigation destination, a short predetermined distance is determined. Details of the method for determining the predetermined distance X will be described later with reference to FIG. Further, the “car navigation destination” indicates not only latitude / longitude information itself indicating an arbitrary point but also information that can indirectly specify an arbitrary point such as a map code, an address, and a telephone number.

  The route guidance unit 130 determines a parking position corresponding to the destination set by the destination setting unit 110 (or the destination setting unit 310 on the portable device 30 side) as a car navigation destination, and a route to the car navigation destination Search and vehicle route guidance (route guidance display and voice guidance) are performed, and the GPS receiver 11, the self-contained navigation sensor 13, the display 14, the speaker 15, the control unit 20, and the map database 24 are the main components. The car navigation destination (parking position) determined by the route guiding unit 130 may be a position linked to the final destination set by the destination setting unit 110 or the final set by the destination setting unit 110. It may be the destination itself. The route guidance means 130 interrupts route guidance triggered by a power-off operation of the in-vehicle device 10 (depression of the power button 26) or an engine stop of the vehicle during route guidance of the vehicle.

  The destination information transmission unit 140 transmits destination information indicating the destination set by the destination setting unit 110 to the mobile device 30 and includes the control unit 20 and the communication unit 19 as main components. Note that the control unit 20 and the communication unit 19 are the main components of the activation command transmission unit 150, arrival confirmation information reception unit 160, destination information reception unit 170, and stop command transmission unit 180 described below. The destination information transmission means 140 transmits the destination information when the four transmission conditions are satisfied. The four transmission conditions are “separation distance”, “predetermined facility”, “predetermined registration point”, and “cooperation processing”.

  First, the transmission condition “separation distance” will be described. The destination information transmission unit 140 determines that the separation distance between the current position of the vehicle and the car navigation destination is within the predetermined distance X by the separation distance determination unit 240 (main component: the control unit 20). Destination information is transmitted to the mobile device 30. Here, the separation distance determination unit 240 is a predetermined distance determined by the predetermined distance determination unit 120 when the route guidance of the vehicle by the route guidance unit 130 is interrupted, and the separation distance between the current position of the vehicle and the car navigation destination is determined. It is determined whether or not the distance is within X. The current position is specified based on the current position information acquired by the current position information acquisition unit 230 (main component: GPS receiver 11).

  Next, the transmission condition “predetermined facility” will be described. The destination information transmission unit 140 is based on the determination result of the predetermined facility determination unit 250 (main component: the control unit 20), and the current position at the time when the route guidance is interrupted (the current position acquired by the current position information acquisition unit 230). If the location information is not within the predetermined facility, the destination information is transmitted. Here, the predetermined facility determination unit 250 determines whether or not the current position of the vehicle is within the predetermined facility when the route guidance of the vehicle by the route guidance unit 130 is interrupted. The predetermined facility refers to a resting facility used mainly for driving breaks such as a service area or a roadside station. In other words, if the current position at the time when the route guidance of the vehicle is interrupted is the service area, the service area is rarely used as the car navigation destination, so if the vehicle route guidance is interrupted in such a facility, Judge that it is a break and do not send destination information. Therefore, even when the user stops by the service area near the destination (within a predetermined distance X from the car navigation destination), it is convenient because unnecessary information (destination information) is not transmitted to the mobile device 30. .

  Next, the transmission condition “predetermined registration point” will be described. The destination information transmission unit 140, based on the determination result of the predetermined registration point determination unit 280 (main component: the control unit 20), outputs the destination information when the car navigation destination is other than the predetermined registration point registered in advance. Send. That is, the predetermined registration point discriminating means 280 shifts the in-vehicle device 10 to a normal operation that does not link with the portable device 30 when the car navigation destination is a predetermined registration point registered in advance. Whether or not the car navigation destination is a predetermined registration point is based on the reference result of the point registration information storage unit 260 (main component: the point registration database 25). In other words, it is difficult to think of a situation in which route guidance by the mobile device 30 is necessary for predetermined registration points (specific places such as your school, company, or home). Therefore, when the route guidance is interrupted near the home or the like (within a predetermined distance X from the car navigation destination), the destination information is not transmitted to the portable device 30 and is convenient.

  Next, the transmission condition “cooperation processing” will be described. The destination information transmission means 140 only outputs the destination information when the cooperation selection means 270 (main components: the control unit 20, the display 14, the speaker 15, the remote controller 17, and the microphone 18) is selected to perform the cooperation processing. Send. Here, the cooperation selecting unit 270 selects whether or not to perform cooperation processing with the portable device 30 after the destination setting by the destination setting unit 110 or after the destination information receiving unit 170 receives the destination information. A selection screen for prompting the user is displayed on the display 14 or selection information is output from the speaker 15. FIG. 3 is a diagram showing an example of the selection screen. The user selects whether to perform cooperation processing with the mobile device 30 by selecting one of the two icons 51 and 52 displayed on the selection screen using the remote controller 17 or the microphone 18. It should be noted that the cooperation selection means 270 can set the presence / absence of cooperation processing in advance in the environment setting or the like, not after the destination setting (car navigation destination determination).

  Further, the destination information transmission means 140 determines whether or not the car navigation destination matches the final destination when the route guidance of the vehicle is finished. If not, the four transmission conditions are set as described above. If it meets, send destination information. In the present embodiment, when transmitting the destination information, current position information indicating the current position at the time when the route guidance of the vehicle is interrupted is also transmitted. Thereby, there is no problem that the user who arrives at the destination according to the guidance of the portable device 30 gets lost when returning to the vehicle, or forgets the parking position and searches for the vehicle.

  Further, after the in-vehicle device 10 transmits the destination information to the portable device 30, the in-vehicle device 10 may end the route guidance. When the destination information is transmitted to the portable device 30, the owner moves to the destination without using the vehicle, so that route guidance on the in-vehicle device 10 side becomes unnecessary. In such a case, by automatically ending the route guidance, it is possible to save the trouble of manually canceling the route guidance, and the convenience of route guidance by cooperation with the mobile device 30 can be improved.

  The activation command transmission unit 150 transmits an activation command for the route guidance unit 320 (activation command for the route guidance application) to the portable device 30 before transmission of the destination information by the destination information transmission unit 140. . Since there is a possibility that the mobile device 30 is in the power OFF state, an operation start command for turning on the mobile device 30 may be transmitted together with the start command for the route guiding means 320.

  The arrival confirmation information receiving means 160 receives arrival confirmation information indicating that the mobile device 30 has arrived at the destination (final destination). The route guidance unit 130 ends the route guidance of the vehicle when the arrival confirmation information receiving unit 160 receives the arrival confirmation information. In the following description, it is assumed that an arrival confirmation command is transmitted when it is determined that the route is being guided after the power is turned on (see S04 in FIG. 5).

  Note that the mobile device 30 may transmit the arrival confirmation information including information on the arrival location (destination). According to this configuration, when a plurality of destinations (route points) are set on the in-vehicle device 10, the route guidance to the destination is terminated, and the route guidance is continued for other destinations. Can do.

  The destination information receiving unit 170 receives destination information from the portable device 30. In addition, the stop command transmission unit 180 transmits a stop command for the route guidance unit 320 to the portable device 30 when the destination information reception unit 170 receives the destination information. That is, the fact that the destination information is transmitted from the mobile device 30 to the in-vehicle device 10 is considered that the route guidance on the mobile device 30 side is no longer necessary, and therefore the route guidance is accompanied with the reception of the destination information. By transmitting the stop instruction of the means 320 to the portable device 30, it is possible to save the user's trouble for stopping the route guidance function on the portable device 30 side.

  Next, details of a method for determining the predetermined distance X will be described with reference to FIG. The figure shows the result of detecting the number of parking lots for each predetermined unit distance (100 [m]) in three patterns. For example, in the case of <parking lot distribution pattern 1>, there are three parking lots within a radius of 100 [m] from the car navigation destination (parking position), and a radius of 200 [m] from the car navigation destination. Indicates that there are six parking lots in addition to three parking lots within 100 [m]. Moreover, in the example of the same figure, the detection result from radius 100 [m] to radius 900 [m] is shown.

  Here, the predetermined distance X is determined. First, the distance immediately before the distance at which the number of parking spaces is minimized is determined as the predetermined distance X. In the case of <parking lot distribution pattern 1>, the distance at which the number of parking lots is minimum (in this case “0”) is 500 [m], and therefore the predetermined distance X is 400 [m].

  Further, when there is no distance at which the number of parking lots is minimum, the maximum distance is determined as the predetermined distance X. That is, in the case of <parking lot distribution pattern 2>, the predetermined distance X is 900 [m].

  Furthermore, when the distance at which the number of parking lots is the minimum is near the car navigation destination (for example, within a distance of 300 [m]), the distance is not used as a reference, and the car navigation destination is a certain distance (400 [m]) From the detection results, the distance that minimizes the number of parking spaces is searched between the detection results of the maximum distance 900 [m], and the distance immediately before the minimum distance is determined as the predetermined distance X. That is, in the case of <parking lot distribution pattern 3>, the predetermined distance X is 600 [m].

  In the above example, the minimum value of the number of parking lots is set to “0”, but the minimum value of the number of parking lots may be determined as 1 or more. In this case, in the example of <parking lot distribution pattern 1>, the predetermined distance X = 300 [m], and in the example of <parking lot distribution pattern 3>, the predetermined distance X = 500 [m].

  Next, the operation of the in-vehicle device 10 will be described with reference to the flowcharts of FIGS. 5 and 6. As shown in FIG. 5, when the in-vehicle device 10 is turned on by an operation with the power button 26 or an engine start of the vehicle (S00), whether or not the portable device 30 is connected (communication is established). Whether or not) (S01). When the portable device 30 is not connected (S01: No), the routine proceeds to normal operation (operation by the vehicle-mounted device 10 alone) (S02).

  If the mobile device 30 is connected (S01: Yes), it is determined whether route guidance is being performed (S03). If the route is being guided (S03: Yes), a destination arrival confirmation command is transmitted to the mobile device 30 (S04). The destination arrival confirmation command receives arrival confirmation information indicating that the mobile device 30 has arrived at the destination while the in-vehicle device 10 is in the power-off state. It is sent to confirm. As a result of transmitting the destination arrival confirmation command, when it is confirmed that the vehicle has arrived at the destination (S05: Yes), the route guidance is terminated (S06).

  On the other hand, if it is determined in S03 that the route is not being guided (S03: No), a destination information confirmation command is transmitted to the mobile device 30 (S07). The destination information confirmation command is transmitted to confirm whether the portable device 30 holds the destination information and makes a transfer reservation for the destination information. If the destination information is received as a result of sending the destination information confirmation command (S08: Yes), a stop command for the route guidance means 320 is sent to the portable device 30 (S09). When the destination information is not received (S08: No), the destination setting is performed on the in-vehicle device 10 side (S11).

  When the destination information is received or the destination setting is performed, the destination search is performed to determine the car navigation destination that is the destination of the in-vehicle device 10 (S10). At this time, a parking lot nearest to the destination may be determined as the car navigation destination. In other words, depending on the destination, there is a case where not the set destination itself but a parking lot attached to the destination is set as the destination of the in-vehicle device 10, so the step of S 10 is necessary. When the parking lot attached to the destination is not set as the car navigation destination, the destination received in S08 or the destination set in S11 is determined as the car navigation destination.

  When the car navigation destination is determined, as shown in FIG. 6, it is determined whether or not the car navigation destination is a predetermined registration point (S20). Here, if the car navigation destination is a predetermined registration point (S20: Yes), the routine proceeds to normal operation (S24). If the car navigation destination is not the predetermined registration point (S20: No), the vicinity of the car navigation destination is searched (S21), and the predetermined distance X is determined (S22). The peripheral search is performed by referring to the map information in the map database 24, and specifically, the distribution of parking lots is detected.

  When the predetermined distance X is determined (S22), the user is allowed to select whether or not cooperation processing with the portable device 30 is desired (S23). Here, when it is selected that the user does not desire (S23: No), the process proceeds to the normal operation (S24). If it is selected as desired (S23: Yes), route guidance is started (S25).

  Thereafter, when the route guidance is interrupted by stopping the engine of the vehicle or the like (S26: Yes), it is determined whether or not the vehicle has arrived at the car navigation destination (S27). Here, when the car navigation destination is reached (S27: Yes), the route guidance is terminated (S28). If the car navigation destination has not been reached (S27: No), it is determined whether or not the current position is a predetermined facility such as a service area (S30). Further, when the current position is not a predetermined facility (S30: No), it is determined whether or not it is within a predetermined distance X [m] from the car navigation destination (S31). Here, when the current position is a predetermined facility (S30: Yes), and when it is not within a predetermined distance X [m] from the car navigation destination (S31: No), without transmitting destination information or the like, A normal shutdown process is performed to place the in-vehicle device 10 in a power OFF state (operation stop state) (S35).

  On the other hand, when arriving at the car navigation destination and finishing the route guidance (S27: Yes, S28), it is determined whether or not the car navigation destination is the destination (the destination of S08, S11) (S29). If the car navigation destination is the destination (S29: Yes), there is no need for further route guidance. Therefore, the normal shutdown process is performed without transmitting the destination information and the vehicle-mounted device 10 is powered on. An OFF state (operation stop state) is set (S35). On the other hand, when the car navigation destination is not the destination (the destination of S08, S11) (S29: No), or the current position is not a predetermined facility (S30: No) and within a predetermined distance X [m] from the car navigation destination In the case of (S31: Yes), an activation command for the route guidance means 320 is transmitted to the portable device 30 (S32). Thereafter, current position information (such as a parking lot) is transmitted to the mobile device 30 (S33), and further destination information (in this case, information indicating the destination of S08 and S11) is transmitted (S34). After performing the normal shutdown process, the vehicle-mounted device 10 is set in a power OFF state (operation stop state) (S35).

  Next, with reference to FIG. 7 and FIG. 8, the cooperation process of the vehicle-mounted device 10 and the portable device 30 will be described. Since the operation of the in-vehicle device 10 has been described with reference to the flowcharts of FIGS. 5 and 6, a sequence diagram is mainly used here, focusing on the exchange of information between the in-vehicle device 10 and the portable device 30 and the operation of the portable device 30. I will explain. In FIG. 7 and FIG. 8, the parenthesis (S **) of the process number indicating the operation of the in-vehicle device 10 indicates the corresponding process number in the flowcharts shown in FIGS. 5 and 6. In addition, rounded rectangles among the rectangular frames indicating the respective steps in the sequence diagram indicate steps that involve operations by the user.

  As shown in FIG. 7, when the vehicle-mounted device 10 is turned on by starting the vehicle engine (S41), the connection of the portable device 30 is confirmed (S42), and if it is connected (S42: Yes), the route It is determined whether guidance is in progress (S43). Here, when the route is not being guided (S43: No), a destination information confirmation command is transmitted to the portable device 30. On the other hand, when the destination information set by the mobile device 30 is transmitted, the in-vehicle device 10 transmits a stop instruction for the route guidance function to the mobile device 30. Thereafter, the portable device 30 stops the route guidance function (route guidance means 320) (S51).

  The in-vehicle device 10 performs a destination search based on the destination information received from the mobile device 30, and determines a car navigation destination based on the search result (S44). Thereafter, route guidance is started (S45), and traveling and route guidance are continued until the engine is stopped (until route guidance is interrupted). When engine stop is detected (S46), it is determined whether or not the destination information transmission condition is satisfied (S47). If the transmission condition is satisfied (S47: Yes), as shown in FIG. The route guidance function activation command is transmitted to the portable device 30.

  The portable device 30 activates the route guidance function by receiving the activation command from the in-vehicle device 10 (S52), and stores the current position information as a return point by receiving the current position information from the in-vehicle device 10 (S53). The destination is stored by receiving the destination information from the in-vehicle device 10 (S54). The in-vehicle device 10 enters a power-off state after transmitting these pieces of information (S48). After storing the destination, the portable device 30 starts route guidance to the destination (S55). In the present embodiment, it is assumed that the mobile device 30 has a route guidance function, but this is not always necessary. For example, the portable device 30 may simply display the destination information received from the in-vehicle device 10, and the owner may move to the destination based on the displayed destination information. The “destination information” here refers to, for example, a map on which a return point (parking position) and a final destination are displayed.

  When the owner of the mobile device 30 moves (walks) according to route guidance and finally arrives at the destination, the mobile device 30 stores therein arrival confirmation information indicating that the mobile device 30 has arrived at the destination. (S56), and the route guidance is terminated. The arrival confirmation information can be received when arrival confirmation is performed when the in-vehicle device 10 is activated (see S05 in FIG. 5).

  In the sequence diagrams shown in FIGS. 7 and 8, the route guidance is performed on the in-vehicle device 10 side based on the destination information set on the portable device 30 side. In this case, the route guidance is interrupted. Information transmission by the in-vehicle device 10 at the time of stopping the engine may be only the current position information. That is, by saving the destination information on the mobile device 30 side, transmission of the destination information when the route guidance is interrupted may be omitted.

  As described above, according to the route guidance system SY of the present embodiment, when the route guidance is interrupted on the in-vehicle device 10 side, the separation distance between the current position of the vehicle and the car navigation destination (parking position) is the car navigation system. It is determined whether or not the distance is within a predetermined distance X determined according to the destination. If the distance is within the predetermined distance X, the destination information is transmitted to the mobile device 30. Whether it is necessary or not can be appropriately determined according to the car navigation destination. Thus, for example, in a car navigation destination where the distribution of parking lots such as sightseeing spots spreads over a wide area, the predetermined distance X is lengthened, and the distribution of parking lots such as the city center is limited to the vicinity of the destination. For example, by shortening the predetermined distance X, the convenience of route guidance by cooperation with the mobile device 30 can be enhanced.

  Further, when the in-vehicle device 10 receives the arrival confirmation information from the mobile device 30, the in-vehicle device 10 automatically ends the route guidance, so that the user operation for ending the route guidance on the in-vehicle device 10 side can be omitted. Thereby, the convenience of route guidance by cooperation with the mobile device 30 can be further enhanced.

  In the above embodiment, the distribution status of the parking lots around the car navigation destination is searched from the map information, and the predetermined distance X is determined based on the search result, but the distance from the car navigation destination to the nearest parking lot is determined. The determination method is arbitrary, such as determining the predetermined distance X according to the distance or determining the predetermined distance X according to the number of parking lots existing within a certain distance from the car navigation destination.

  Further, instead of searching for the vicinity of the destination from the map information, a predetermined distance X may be determined in advance for each car navigation destination. In this case, instead of the surrounding information search means 220 in the functional configuration shown in FIG. 2, distance information storage that stores each point that can be determined as a car navigation destination and distance information to be used as a predetermined distance in association with each other. Means (not shown), and the predetermined distance determining means 120 refers to the distance information storage means in accordance with the determination of the car navigation destination, and determines the predetermined distance based on the distance information associated with the car navigation destination. Will be. According to this configuration, since the predetermined distance can be stored in a database, the predetermined distance having an appropriate length corresponding to the car navigation destination is easily determined (without performing a search around the car navigation destination). be able to. Note that the predetermined distance may be determined by referring to the distance information storage means when the route guidance is interrupted, instead of determining the predetermined distance along with the determination of the car navigation destination.

  The distance information storage unit may be provided in an external device (a server configured to be communicable with the in-vehicle device 10). In this case, when the parking position is transmitted from the in-vehicle device 10 to the external device, the external device reads the distance information associated with the parking position from the distance information storage unit and transmits the distance information to the in-vehicle device 10. The in-vehicle device 10 (predetermined distance determining means 120) determines the predetermined distance based on the distance information acquired from the external device. According to this configuration, since it is not necessary to provide the distance information storage means in the in-vehicle device 10, the device configuration of the in-vehicle device 10 can be simplified and reduced in price. In addition, since the distance information storage means can be collectively managed by the external device, the update process is easy.

  In the above-described embodiment, the destination information is transmitted to the mobile device 30 only when the transmission condition is satisfied due to the suspension of route guidance in the in-vehicle device 10. You may enable it to transmit destination information at arbitrary timings by operation. Further, the destination information may be transmitted from the in-vehicle device 10 by a user operation on the portable device 30. In this case, the mobile device 30 transmits a destination information transmission request to the in-vehicle device 10. In response to the transmission request, the in-vehicle device 10 transmits destination information indicating a destination that is performing route guidance at that time.

  In the above embodiment, a place registered as a specific place (your company, school, home, etc.) is set as a predetermined registration point. However, a frequently visited place (for example, a past predetermined number of times or more) It is also possible to learn a place where the place has been set and automatically register it as a predetermined registration point. Further, a car navigation destination (see S23 in FIG. 6) for which the cooperation processing has been canceled in the past may be stored, and the car navigation destination may be registered as a predetermined registration point.

  In the above embodiment, it is determined that the mobile device 30 has actually arrived at the destination based on the current position information acquired by the GPS receiver or the like and the destination information received from the in-vehicle device 10. In this case, the arrival confirmation information is transmitted to the in-vehicle device 10, but the owner of the portable device 30 transmits the arrival confirmation information by performing a predetermined operation (for example, pressing an arrival confirmation button). You may do it. In this case, the portable device 30 determines that the mobile device 30 has arrived at the destination when a predetermined operation is performed by the user regardless of whether the mobile device 30 has actually arrived at the destination. Therefore, if the owner of the mobile device 30 determines that route guidance by the in-vehicle device 10 after returning to the vehicle is unnecessary even if it has not actually arrived at the destination, by performing a predetermined operation, This is convenient because the route guidance on the in-vehicle device 10 side can be terminated.

  Further, in the above embodiment, when the in-vehicle device 10 receives the arrival confirmation information from the mobile device 30, the route guidance is automatically terminated, but conversely, the mobile device 30 is disconnected from the in-vehicle device 10. Even when the arrival confirmation information is received, the route guidance function on the portable device 30 side may be terminated. According to this configuration, even when the destination information is transmitted from the portable device 30 to the in-vehicle device 10 and the route guidance is taken over, it is possible to save the user's trouble of terminating the route guidance function on the portable device 30 side.

  In addition, it is possible to provide each component in the vehicle equipment 10 and the portable device 30 shown in said embodiment as a program. Further, the program can be provided by being stored in a recording medium (not shown). That is, a program for causing a computer to function as each component of the in-vehicle device 10 and the portable device 30 and a recording medium recording the program are also included in the scope of the right of the present invention. Other modifications can be made as appropriate without departing from the scope of the present invention.

It is a control block diagram of the vehicle equipment which concerns on one Embodiment of this invention. It is a functional block diagram of a route guidance system. It is a figure which shows an example of the selection screen for selecting the necessity of a cooperation process. It is a figure which shows an example of the determination method of the predetermined distance based on the distribution condition of a parking lot. It is a flowchart which shows operation | movement of vehicle equipment. It is a flowchart following FIG. It is a sequence diagram which shows the cooperation process of vehicle equipment and a portable apparatus. FIG. 8 is a sequence diagram following FIG. 7.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... In-vehicle apparatus 11 ... GPS receiver 12 ... Antenna 13 ... Autonomous navigation sensor 14 ... Display 15 ... Speaker 16 ... Remote control receiver 17 ... Remote control 18 ... Microphone 19 ... Communication part 20 ... Control part 21 ... CPU 22 ... ROM 23 ... RAM 24 ... Map database 25 ... Point registration database 26 ... Power button 28 ... Connection bus 30 ... Portable device SY ... Route guidance system

Claims (12)

Destination setting means for setting a destination;
Route guidance means for guiding the route of the vehicle to the parking position corresponding to the destination;
Destination information transmitting means for transmitting destination information indicating the destination to a portable device;
Arrival confirmation information receiving means for receiving arrival confirmation information indicating that the mobile device has arrived at the destination, and
The vehicle-mounted device, wherein the route guidance unit terminates route guidance of the vehicle to the parking position when the destination information is transmitted or when the arrival confirmation information is received.   The in-vehicle device according to claim 1, wherein the destination information transmitting unit transmits the destination information when the route guidance of the vehicle is interrupted.   2. The apparatus according to claim 1, further comprising an activation command transmission unit configured to transmit an activation command of a human route guidance function to the portable device before the transmission of the destination information by the destination information transmission unit. Vehicle-mounted device as described in. The portable device further has a destination setting function for setting a destination,
Destination information receiving means for receiving destination information set by the destination setting function from the portable device;
Along with the reception of the destination information, the mobile device further comprises a stop command transmission means for transmitting a stop command for the route guidance function,
The in-vehicle device according to claim 1, wherein the destination setting unit sets the destination based on the received destination information. It further comprises cooperation selection means for selecting whether or not to perform cooperation processing with the portable device,
The in-vehicle device according to claim 1, wherein the destination information transmission unit transmits the destination information when the cooperation selection unit is selected to perform the cooperation process. It further comprises current position information acquisition means for acquiring current position information indicating the current position,
The destination information transmitting means transmits the destination information when a separation distance between the current position and the parking position when the route guidance of the vehicle is interrupted is within a predetermined distance. The in-vehicle device according to claim 2.   The in-vehicle device according to claim 6, wherein the destination information transmitting unit transmits current position information indicating the current position at the time when route guidance of the vehicle is interrupted together with the destination information. The route guidance means interrupts the route guidance, triggered by a power-off operation of the in-vehicle device or engine stop of the vehicle during route guidance of the vehicle,
The in-vehicle device according to claim 2, wherein the destination information transmitting unit transmits the destination information before the operation of the in-vehicle device is stopped due to the power-off operation or the engine stop.   The in-vehicle device according to claim 2, wherein the destination information transmission unit transmits the destination information when the parking position is other than a predetermined registration point registered in advance.   A route guidance system comprising the in-vehicle device according to any one of claims 1 to 9 and the portable device. A communication control method for an in-vehicle device that performs route guidance of a vehicle in cooperation with a portable device that performs route guidance of a human,
The in-vehicle device is
Setting a destination,
Performing route guidance of the vehicle to a parking position corresponding to the destination;
Transmitting destination information indicating the destination to the portable device;
Receiving arrival confirmation information indicating arrival at the destination from the portable device;
A step of ending route guidance of the vehicle to the parking position after transmitting the destination information or after receiving the arrival confirmation information.   The program for making a computer perform each step in the communication control method of the vehicle equipment of Claim 11.

Images